Forum Discussion

Jackie_Treehorn's avatar
Jackie_Treehorn
Explorer
Jul 07, 2014

Generator running two AC units, outlet appliances get hot

I have an Onan 5500 with about 240 hours on it right now which is supposed to run two rooftop AC units, but I can only get it to run the primary unit and not the bedroom. Both units work fine when I'm...
Class A
wildmanbaker's avatar
wildmanbaker
Explorer
Jul 08, 2014
You should be all right at 118v. You should not get into trouble until about 110v or less. The voltage went up when you loaded the gen, and the governor called for more power from the engine, more rpms.

About Motorhome Group

38,766 PostsLatest Activity: Jan 10, 2026